OOSSXX 4CH 1080P HD Wireless Video Security Camera System,4PCS 720P Megapixel Wireless Weatherproof Bullet IP Cameras,Plug and Play,70FT Night Vision,P2P,App, HDMI Cord&1TB HDD Pre-install The wireless system supports up to four cameras, so the monitoring range is wide.The product is suitable for a variety of occasions, like homes,offices,workshop,restaurants,etc. Even at night, the waterproof camera can monitor every corner of the house very well. You can use your mobile app to watch everything in your home remotely, anytime, anywhere. Once a thief breaks into the house, the system will automatically send an alert to your mailbox. Our shop provide a variety of extension accessories (extend antenna, extend camera, Wi-Fi extender, etc.) The system can be wireless or wired. Wireless connection refers to the NVR without cable connection to the camera. Simply mount the cameras, plug in the adapters and go. Connection between the NVR and cameras is through your internet.In this way, the installation of the product will be very easy. Wired connection is via cable to connect NVR and cameras. The camera is without a battery.So each camera needs to be plugged into a nearby outlet for power. All OOSSXX security systems come with durable metal IP-66 cameras engineered to perform in severe environmental conditions. The IP-66 rating is noted for devices that have tested as virtually airtight against dust, moisture, etc.And they are able to endure wind, rain, and other extreme conditions. Each camera&#039;s excellent build quality is part of what assures long term reliability of our surveillance systems which stand at the forefront of commercial and private consumer security solutions. The IP-66 weather-proof metal bullet camera features a large 3.6 millimeter lens and wide 70viewing angle, coupled with a 3 array IR-LED system for night vision delivering exceptional clarity at distances up to60 feet. The camera&#039;s infrared mode is automatically activated in low lighting conditions.It can clearly monitor everything even at night. Any intruder unfortunate enough to cross paths with OOSSXX video security system will have their every move illuminated and captured in crystal clear detail. All camera channels wireless signals are encrypted and run on your network by using the NVR as a central hub. In addition to directly watching the video using the system internal network, we remotely view your security system using internet browsers or your smart phone Download the IP Pro or Eseecloud app on your smart phone (IOS or Android), and enjoy cameras simultaneous viewing on the app. Watch recordings saved on NVR remotely via app. You can watch them on your mobile phone anytime anywhere, using mobile network or Wi-Fi. Playback locally on your large screen TV by using the HDMI port on the NVR. The security system allows you to customize the motion detection area, such as a door or window, as needed.The motion sensor sensitivity can also be customized to prevent false alarms such as plants moving in a breeze. When a camera detects motion , it can activate multiple security responses including turning on alarm, sending an alert and picture to your email box, communicate information to App, and trigger a recording. We provide a series of products,accessories, you can order according to your needs, to design your own monitoring system. When you want to add accessories to an existing suit, we will give you a<span class="a-text-bold">15% discount</span>. extended antenna, Wi-Fi extender,expanded camera,etc.